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Total area of land to power the world with solar energy - Page 3

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Posted by Paul M. Eldridge on April 9, 2007, 9:09 pm

Hi Roland,

Just to add to your post, according to Canada's National Energy Board,
Nova Scotia's wind capacity factor falls between 35 and 40 per cent,
so a 3.0 MW wind turbine (towards the higher end of the scale) might
produce upwards of 10 GWH of electricity each year.

Bangor Hydro (Bangor, Maine) serves approximately 114,000 customers
and its electricity sales in 2006 stood at 1,571 GWh (1.6 TWh).  That
would be roughly equal to the annual output of 160 of these turbines,
assuming similar capacity factors.

Interesting to note that GE is developing a new generation of offshore
turbines in the 5 to 7 MW range.  Given that capacity factors are
likely to be even higher offshore than on, sixty of these mammoth-size
units might be sufficient to meet all of Bangor's electricity needs.


Posted by Steve O'Hara-Smith on April 9, 2007, 9:13 pm
On Mon, 9 Apr 2007 21:14:05 +0200

    Wow they are getting big. It's still a lot of turbines per
megaperson though (say 1500) - just nowhere near as many as the OP claimed.

    So 25% wasn't a bad estimator then.

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Posted by Shitbag Adulterer McCain on April 10, 2007, 4:45 am
40% capacity factor is realistic for well chosen sites. 3,500 full
power hours per year

Posted by Eeyore on April 10, 2007, 6:03 am

Shitbag Adulterer McCain wrote:

Even the UK can't manage 40%. 25% is far far closer to a real world number.


Posted by Alex Terrell on April 10, 2007, 6:32 am

The UK is well known for changeable and unpredictable weather.
Unpredictable can also mean no wind.

England (as opposed to Scotland) may eventually achieve close 40%
since a large proportion of turbines will be offshore.

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